Table 4 . Comparison of the number of drugs per prescription in Iran and other countries (1998–2012) .
| Authors | Area | Year | Results |
| Cheragali et al. (1) |
National Khuzestan |
2004 2004 |
3.4* 3.7 |
| Shayan et al. (25) |
Tabriz Lorestan |
2006 2006 |
4.5 4.2 |
| Shamsi et al. (26) | Bam | 2008 | 3.5 |
| Dinarvand and Nikzad (27) | Tehran | 1998 | 3.6 |
| Alikhani et al. (28) | Yasuj | 2006 | 3.6 |
| Zareshahi et al. (29) | Kerman | 2012 | 3.1 |
| Mosleh et al. (30) | Tehran | 2007 | 2.5 |
| Ahmad Raza et al. (31) | Pakistan | 2014 | 3.3 |
| Rahman et al. (32) | Bangladesh | 2011 | 3.8 |
| Wang et al. (33) | China | 2013 | 3.5 |
*The number of drugs per prescription.